Vacuum Leak Testing Instrument

PT-LT100
Vacuum Leak Testing Instrument

The PT-LT100 leak tester is used to test for the integrity of packed strips, blisters and small sachets containing tablets, granulates, liquids and so on. The instrument is used to test the quality of the packaging process and to check that the seals enclosing the product are perfectly intact. PT-LT100 is designed to find the smallest holes and imperfections in blister packs and other semi-rigid product packaging. It is fully compliant with the current USP <1146> monograph.

Leak testing is widely applied in the pharmaceutical industry to check strips, blisters and bottles containing tablets, capsules, syrups and similar. It also finds application in the food industry, where it can be effectively used to check the airtightness of sweet packets, ready-to-eat pre-packed foods, confectionery packaging, packs of noodles or sauces. Samples are placed into the desiccator’s housing and the lid is placed in position. The pump starts to produce a vacuum inside the desiccators and the vacuum is held for a pre-set time.

The first thing to observe is that he tested package should keep its shape during this test; otherwise, the sealing is not correct. Secondly, as the package is immersed in a colored dye solution (normally Methylene Blue),the venting of the desiccators will allow any holes to be penetrated by the dye and the contents of the flexible packaging will also be stained with the same coloring material. Similarly small bottles can also be tested. A sheet of paper will absorb any leaking fluid.

Features

• Fully USP <1146> compliant
• Test the integrity of strips, blisters, bottles and similar
• User management system
• Method management system
• Integrated calibration programs
• Connect USB flash drive to copy methods and store test reports
• Integrated protocol printer

Advantages

• Ensure the quality of your packaging process, save costs by detecting leaks early
• Option to use an external balance instead of visual inspection
• Graphical LCD screen showing actual and target settings
• Integrated protocol printer reduces bench space requirements
• Password protected access through user management system
• Programmable qualification interval timer reminds the user to perform instrument calibration
• Dedicated calibration programs and reports
• Copy methods between instruments by using a common USB flash drive
• Export test reports as text files
• Transmit test result to external systems such as LIMS
• IQ/OQ documents included free of charge

Operation Principle

• Vacuum Level and Holding Time
  Set vacuum level and holding time for your test. Up to four different vacuum levels and corresponding holding times can be programmed in a method. This way a product can be tested in a sequence of different vacuum levels, each with their own holding time. The instrument can be set to actively maintain the current vacuum level during the holding time. Besides visual inspection of the sample after test, it also optionally possible to connect a balance to the instrument. This way the sample can be weighed before and after the test.
• Testing with Liquids
  If the test is performed by immersing the sample in a liquid, the sample weight will increase in case it absorbs liquid through leaks.
  If the sample is a container with liquid inside, the sample weight will decrease in case liquid is sucked out of the container through leaks.
• User Interface with Click Wheel Navigation
  PT-LT100 is operated by using a click wheel to navigate menus on the LCD screen and by functional keys to shortcut frequent operations. The display is backlit in changing colors that show the instrument status in a familiar traffic light system (green, yellow, red). Navigating the menu is quick and simple. The color-changing display makes it easy for the user to see when his input is required to proceed.